| 摘要 |
PROBLEM TO BE SOLVED: To provide an instruction prefetching circuit with which processing capability can be enhanced, using a simplified circuit configuration. SOLUTION: When a conditional branch instruction is detected, an instruction prefetching control part 24, based on its branching frequency, decides whether prefetching the instruction is halted, in accordance with the control flag set on a prefetching control register 25 in advance. COPYRIGHT: (C)2005,JPO&NCIPI
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